AAT1120 データシートの表示（PDF） - Advanced Analogic Technologies
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AAT1120 Datasheet PDF : 20 Pages
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AAT1120
500mA Step-Down Converter
Typical Characteristics
Efficiency vs. Load
(VOUT = 3.0V; L = 4.7µH)
Load Regulation
(VOUT = 3.0V; L = 4.7µH)
100
90 VIN = 3.6V
80
70
60
50
40
0.1
1
VIN = 4.2V
VIN = 5.0V
10
100
1000
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0.1
VIN = 3.6V
1
VIN = 5.0V
VIN = 4.2V
10
100
1000
Output Current (mA)
Output Current (mA)
Efficiency vs. Load
(VOUT = 1.8V; L = 3.3µH)
100
VIN = 3.6V
90
VIN = 2.7V
80
VIN = 4.2V
70
60
50
40
0.1
1
10
100
1000
Output Current (mA)
Load Regulation
(VOUT = 1.8V; L = 3.3µH)
2.0
1.5
1.0
VIN = 2.7V
VIN = 3.6V
0.5
0.0
-0.5
-1.0
VIN = 4.2V
-1.5
-2.0
0.1
1
10
100
1000
Output Current (mA)
Efficiency vs. Load
(VOUT = 1.2V; L = 1.5µH)
Load Regulation
(VOUT = 1.2V; L = 1.5µH)
100
90
VIN = 2.7V
80 VIN = 3.6V
70
2
1.5
VIN = 2.7V
1 VIN = 3.6V
0.5
0
VIN = 4.2V
60
VIN = 4.2V
50
VIN = 5.0V
-0.5
-1
-1.5
VIN = 5.0V
40
0.1
1
-2
10
100
1000
0.1
1
10
100
1000
Output Current (mA)
Output Current (mA)
1120.2007.01.1.0
5
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